reading integers from files

[polyneem]

I'm pretty new to the whole c++ scene, and am wondering how to go about reading integers from a text file. I tried the following code, it works fine with chars but not with ints.

Code: Select all

#include <fstream>

#include <iostream>

using namespace std ;





int main()

{

	int letter ;

	int i ;

	//string line ;



	ifstream reader( "poem.txt" ) ;



	if( ! reader )

	{

		cout << "Error opening input file" << endl ;

		return -1 ;

	}

	else

	for( i = 0; ! reader.eof() ; i++ )

	{

		reader.get( letter ) ;

		cout << letter ;


	}



	reader.close() ;

	

	cout << "Iterations: " << i << endl ;

	

	return 0 ;

}

[avansc]

http://www.cplusplus.com/reference/clib ... o/fprintf/

[Ginto8]

http://www.cplusplus.com/reference/clib ... o/fprintf/

He'd want fscanf rather than fprintf:

• http://www.cplusplus.com/reference/clib ... io/fscanf/

He also might want these articles:

• http://www.cplusplus.com/reference/clib ... tdio/FILE/
  http://www.cplusplus.com/reference/iostream/ifstream/

I'd recommend the first one, but if for some strange reason you prefer iostream-type access, use the second one.

[avansc]

whoops. yes.

[polyneem]

thank you all for your help, I have it working now